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This is a courtesy notification to our clients and community regarding an alleged security issue for PostgreSQL 12.2.
The following issue was reported as CVE-2020-21469:
An issue discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals.
This is not a security vulnerability, and was filed without prior knowledge of or consultation with the PostgreSQL Security Team as reported in this …
PgManage 1.0b2 released.
Command Prompt is pleased to announce PgManage version 1.0b. This release adds two major features, 3 major bug fixes and over a dozen changes and improvements. PgManage is a Postgres centered multi-database management Open Source project.
PgManage is a Postgres centered multi-database management Open Source project. It is a fork of the previously well received project OmniDB that had been abandoned. Command Prompt has taken the helm of this project to ensure a quality project focused on the Management of PostgreSQL and related technologies.
Recently I have been working on PostgreSQL benchmarks for its data checksums feature. This incredibly valuable option to initdb -- introduced in version 9.3 in 2013 -- allows quick detection of corrupted disk data pages. It provides the glorious opportunity to simply failover to a standby before your data becomes corrupted, rather than endure the horror of discovering the corruption afterward and attempting to recover.
But people care as much …
The fifth and last in a series of blogs covering common mistakes in Database and Application designs for financial calculations.
There are many methods of rounding
The built-in method of rounding in PostgreSQL is Half Round Up. Unfortunately, it is not the best approach, …
The fourth in a series of blogs covering common mistakes in Database and Application designs for financial calculations.
The database driver or application framework created errors are probably the hardest to find, as we are the consumer not the writer of the tool, with many assuming the casting is correct. However, we must review the documentation or the library’s code to know how …
The third in a series of blogs covering common mistakes in Database and Application designs for financial calculations.
When working with float data types, order of operations will affect the ending value.
Python3:
justin@Debian10:~$ python3
Python 3.7.3 (default, Jul 25 2020, 13:03:44)
>>> (1234.567 * 3.333333) + (1.234567 * 3.333333)
4119.338,144,732,812
>>> (1234.567 + 1.234567 ) * 3.333333 …
The second in a series of blogs covering common mistakes in Database and Application designs for financial calculations.
This is probably the most common mistake in database design that I observe. It is understood to use exact data types (such as numeric) and the precision must be fixed, but for whatever reason the decision is made that it’s OK for one table to use numeric(12,4),a second table …
A series on the use of data types to insure accurate financial calculations with your application.
Over my multi-decade career, I have often noticed the problematic use of real, floating, double, and fixed precision types to store and calculate financials. Most believe the application only needs two digits to the right of the decimal point for financial data. The use of only two digits assumes that many financial calculations do …